Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes
Hydrogen peroxide, symbiosis, species-spanned antioxidative defence system, catalase, superoxide dismutase, glutathione reductase, sea ice. - The Antarctic ice diatom Amphiprora kufferathii is covered by epibacteria in its natural environment. Axenic cultures of the diatom were established with the...
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Staats- und Universitätsbibliothek [Host]
2004
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Online Access: | http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000010534 http://webdoc.sub.gwdg.de/ebook/diss/Bremen/2004/E-Diss1053_Hünken.pdf |
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ftgbv:oai:gbv.de:opac-de-7:ppn:396167799 2023-05-15T13:33:53+02:00 Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes Hünken, Mark 2004 electronic Elektronische Ressource electronic resource remote Online-Ressource 144 p. = 4669 KB, text and images http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000010534 http://webdoc.sub.gwdg.de/ebook/diss/Bremen/2004/E-Diss1053_Hünken.pdf ger ger Staats- und Universitätsbibliothek [Host] 2004 ftgbv 2016-10-30T23:16:57Z Hydrogen peroxide, symbiosis, species-spanned antioxidative defence system, catalase, superoxide dismutase, glutathione reductase, sea ice. - The Antarctic ice diatom Amphiprora kufferathii is covered by epibacteria in its natural environment. Axenic cultures of the diatom were established with the antibiotic ampicilline. The experiments were carried out with bacterized and axenic cultures of the diatom.The bacteria were identified by isolation and cloning of total 16S rRNS of the bacterized diatom culture. Phylogenetic analysis showed that A. kufferathii is covered by alphaproteobacteria of the genera Octadecabacter and Sulfitobacter as well as by members of the bacteriodetes phylum of the genera Cellulophaga and Psychroflexus. Most of the free living bacteria were classified as gammaproteobacteria of the genera Colwellia. Cellulophaga, Sulfitobacter, and Colwellia were isolated from the diatom culture and used for further studies.Quantitative fluorescence in situ hybridization showed a 70% coverage of the diatom by Octadecabacter. Bacteriodetes and gammaproteobacteria showed a maximal abundance of 10% to 13%.The epibacteria stimulate the growth of A. kufferathii. Experiments under nutrient limitation . @Bremen, Univ., Diss., 2004 Other/Unknown Material Antarc* Antarctic Antarktis* Sea ice Georg-August-Universität Göttingen: GOEDOC Antarctic The Antarctic |
institution |
Open Polar |
collection |
Georg-August-Universität Göttingen: GOEDOC |
op_collection_id |
ftgbv |
language |
German |
description |
Hydrogen peroxide, symbiosis, species-spanned antioxidative defence system, catalase, superoxide dismutase, glutathione reductase, sea ice. - The Antarctic ice diatom Amphiprora kufferathii is covered by epibacteria in its natural environment. Axenic cultures of the diatom were established with the antibiotic ampicilline. The experiments were carried out with bacterized and axenic cultures of the diatom.The bacteria were identified by isolation and cloning of total 16S rRNS of the bacterized diatom culture. Phylogenetic analysis showed that A. kufferathii is covered by alphaproteobacteria of the genera Octadecabacter and Sulfitobacter as well as by members of the bacteriodetes phylum of the genera Cellulophaga and Psychroflexus. Most of the free living bacteria were classified as gammaproteobacteria of the genera Colwellia. Cellulophaga, Sulfitobacter, and Colwellia were isolated from the diatom culture and used for further studies.Quantitative fluorescence in situ hybridization showed a 70% coverage of the diatom by Octadecabacter. Bacteriodetes and gammaproteobacteria showed a maximal abundance of 10% to 13%.The epibacteria stimulate the growth of A. kufferathii. Experiments under nutrient limitation . @Bremen, Univ., Diss., 2004 |
author2 |
Hünken, Mark |
title |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
spellingShingle |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
title_short |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
title_full |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
title_fullStr |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
title_full_unstemmed |
Wechselwirkungen zwischen der antarktischen Eisdiatomee Amphiprora kufferathii Manguin und epiphytischen Bakterien unter besonderer Berücksichtigung des Oxidatinsschutzes |
title_sort |
wechselwirkungen zwischen der antarktischen eisdiatomee amphiprora kufferathii manguin und epiphytischen bakterien unter besonderer berücksichtigung des oxidatinsschutzes |
publisher |
Staats- und Universitätsbibliothek [Host] |
publishDate |
2004 |
url |
http://nbn-resolving.de/urn:nbn:de:gbv:46-diss000010534 http://webdoc.sub.gwdg.de/ebook/diss/Bremen/2004/E-Diss1053_Hünken.pdf |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarktis* Sea ice |
genre_facet |
Antarc* Antarctic Antarktis* Sea ice |
_version_ |
1766046731247550464 |